XAMPP has MySqlAdmin pre-installed. try going to 'http://localhost'. There you can read more about xampp and access MySqlAdmin.

One thing you have to do before you can access MySqlAdmin (read in the localhost page) is to run '/opt/lampp/lampp security'. This sets passwords for the server, etc. Once this is done, you can get to admin and the databases.

Off course: Neither of the things Xampp installs and run are in the system path. You shuold cd where mysql binary is in your xampp version, and ./mysql.
If just trying to do some security measures, use the security assistant first:

Code:

/opt/lampp/lampp security

and it will prompt you about passwords for the services involved._________________